Knob attachment



un .1 PM IH Hm.. WT m..` PA n nn d. d 0. M o N\ Patented Nov. 7, 1893.

UNITED STATES .PATENT OFFICE.

HENRY J. P. WHIPPLE, 0E NEW HAVEN, ooNNEoTiouT. I,

KNOB ATTACHMENT.

SPECIFICATION forming part of Letters Patent No. 508,195, dated November '7, 1893.

Application led February 24, 1893. Serial No. 463,526- (No model.)

To a/ZZ whom it may concern:

Be it known that I, HENRY J. P. WHIPPLE, of New Haven, in the county of New l-Iaven and Stateof Connecticut, have invented a new Improvement in Door-Knobs; and I do hereby declare the following, when taken in connection with accompanying drawings and the letters of reference marked thereon, to be a full, clear, and exact description of the same, and whichsaid drawings constitute part of this'specilcation, and represent, in

Flgure l, a view partly in side elevation and partly in vertical section of one form which a knob constructed in accordance with my lnventlon may assume; Fig. 2, a view partly 1n vertical section of the right hand knob shown in the preceding figure; Fig. 3, a detached view in end elevation of the adjusting-[sleeve shown in Figs. 1 and 2; Fig.4, a view 1n transverse section -on the line :z3-x of Flg. l showing the spring-pin employed to connect the left-hand knob with the spindle; Fig. 5, a detached view partly in vertical sec: tion of a knob showing another way of locklng the adjusting sleeve; Fig. 6, a detached view in end elevation of the sleeve shown in Fig. 5; Fig. 7, a similar view of the locking sleeve shown in the same figure.

My invention relates to an improvement in door-knobs, the object being to produce a simple and durable article, adapted to be conveniently applied to doors, and accommodated to their thickness without the use of washers, and side screws, andpresenting, when in place, a neat and finished appearance.

With these ends in view, my invention consists 1n the combination withfthe neck of a door-knob, of an adjusting sleeve mounted thereupon, and forming an extension thereof, and means for locking the sleeve in any desired Aadj ustm ent. f

My invention further consists in certain details of con struction and combinations of parts as will be hereinafter described and pointed out inthe claims.

As shown in Figs. I to 4 inclusive of the drawings, the rightfhand knob A, to which the spindle B, is rigidly secured, has its neck A', reduced in diameter at its outer end,

5 and furnished with an exterior screw-thread.

ma Upon the said neck of the knob, so threaded,

l locate an adjusting sleeve, which forms an extension of the neck. this sleeve is adapted in diameter to fit over the inner portion of the neck A of the knob, while its outer end C', is made somewhat smaller, internally threaded, and thus adapted to take into the threaded and reduced outer end of the neck. The outer end C', of the sleeve is also adapted in size to enter the short socket D, formed to receive it in the center of the rose D', which is adapted in the ordinary manner to be secured to the door. It will be apparent that by turning the sleeve, its position on the neck may be changed, so as to virtually increase or decrease the length thereof, wherebyithe knob as a whole is accommodated to the thickness of the door, as will be set forth later on. Thesleeve is locked in any desired position of adjustment upon the neck, by means of a spring-actuated dog E,located in a longitudinal recess e, formed to receive it in the inner end of the neck, and adapted in depth to permit the dog to be pushed down flush with the exterior surface of the same. This dog is attached at itsinner endvto a pin E', located in a socket e', formed in part in the neck and in part in the spindle B, and large enough to contain also a small spiral spring E2 arranged to exert a constant eort to push the pin, and

hence the dog, radially outward. To adapt the sleeve to be engaged by the dog, its outer end O, is constructed with one or more shallow longitudinal grooves c, as clearly shown by Fig. 3 of the drawings, which represents four of these grooves arranged quartering. Normally the'dog is entered into one of these grooves, whereby the sleeve is prevented from rotation. l When, therefore, it is desired to rotate the sleeve to change its adjustment, or for any other purpose, the exposed projecting end of the dog is engaged by the ngers, and the dog pressed inward against the force of the spring Efand disengaged from the sleeve,

which may then be rotated.

The left-hand knob A2 is removably connected with the spindle B through its neck A3. This connection may be made in any approved way,.but I prefer to make it by means of a spring-pin F, having an enlarged head. This pin passes through a transverse hole ct, formed in the neck to receive it, and through one of a series of yholes b, formed in the adjacentend of the spindle. As herein The inner end 0, of.

IOO

shown, the neck is constructed with a transverse groove a', located in line withthe hole a, and adapted to receive the head of the spring-pin, which is thus prevented from 1 04 tating. The object of this groove is to allow the head of the spring-pin to pass below the surface of the neck, and as stated to prevent the pin from rotating, and if the outer wall of the groove were cut away, the purpose of it would be subserved just as well. When the knob, considered as a whole, is in its Iinal adjustment, the head of the spring-pin will be located in the socket D2, formed in the rose D2, located on the opposite side of the door from the rose D', which has already been referred to. By reason of this spring action, this pin, which is very convenient to use, is retained-in place, while the knob is being handled and applied to the door.

In applying a knob in accordance with my invention, the knob A is first put in place, whereby the spindle B, is projected through the opposite side of the door. The knob A2 is then applied to the projecting end of the spindle, and attached thereto by means of the spring-pin F, which is passed through that one of the holes b, formed in the spindle which secures the closest adjustment of the parts. This may be described as the coarse adjustment of the knob. There will still rernain a little end-shake of the spindle, which is ordinarily taken up by washers, which are put in place before the knob A2, is secured to the spindle.

adjustable sleeve until its outer end is nearly,

` or q'ite in engagement with the bottom of the socket D, in the rose D. This adjustment will draw the Cotter-pin into the correspending socket D2, formed in the rose D3 on the opposite side of the door. If it is desired to remove the knob from the door, that may be done by disengaging the dog E, from the adjusting sleeve, and turning the same until the knob A can be pushed inward sufciently to cause the knob A2, to move outward far enough to expose the spring-pin F, which may then be removed, and the knob A2 detached from the spindle, which may then be withdrawn from the door with the knob A.

In Figs. 5 to 7 inclusive, I have shown another way of locking the adjusting sleeve. In this construction the said sleeve G, is constructed with an inwardly extending concentric flange G', having four notches g, as seen by Fig. 6 of the drawings, arranged at equal distances apart, and each adapted to receive a locking pin I-I, extending radially inward from a iiange H,'forrned at the outer end of a secondary sleeve H2, which corresponds in its external diameter to the diameter of the enlarged inner end of the sleeve G. Y By providing its outer end with a flange H', the said secondary sleeve, tits over the fiange G of the adjusting sleeve G, making a good joint between the two sleeves. A spiral spring I, encircling the neck J, of the knob J, as shown Under' my invention, how-` ever", I take up this end shakel by turning my Y in Fig. 5, is arranged to exert a constant effort to engage the pin l-I withone of the slots g. When it is desired to unlock the sleeve G, the sleeve H2, is drawn back by the fingers against the tension of its spring J, whereby its pinII, is withdrawn from the slot g in the liange G of the sleeve G, with which 1t was engaged, leaving thesaid sleeve free to be rotated.

It is apparent that I might make still f urther alterations in the construction of my 11nproved knob, and I would therefore have it understood that I do not limit myself to the exact form herein shown and described, but hold myself at liberty-to make such changes and alterations as fairly fall within the spirit j and scope of my invention.

Having fully described my invention,what I claim as new, and desire to secure by Letters Patent, is-

1. The combination with the neck of a doorknob, the said neck being threaded, of a threaded adjusting sleeve mounted thereupon and extending beyond the end thereof, and means associated with and exposed upon the neck of the kpob for locking the sleeve to the said neck in any desired position of extension therefrom, substantially as described.-

2. The combination with the neck ofa doorknob, the said neck being threaded, of an adj Listing-sleeve mounted thereupon and extending beyond the end thereof, and internally threaded to take into the threads of the neck, and means associated with and exposed upon the neck of t-he knob for locking the said sleeve by its rear end to the neck to secure the sleeve in any desired position of extension therefrom, the said means being located in rear of the threaded portions of the `neck and sleeve, substantially as described.

3. The combination with the neck of a doorknob, the said neck being threaded, of a threaded adjusting sleeve mounted thereupon, and extending beyond the end thereof, and constructed with locking notches located in its rear edge, and a spring-actuated locking device to enter the said notches and lock the sleeve against rotation, in any desired extension beyond the end of the neck, substantially as described.

4. The combination with the neck of a doorknob, the said neck being threaded, of an adjusting sleeve havngits outer end threaded, mounted upon the said neck and extending beyond the end thereof, and constructed at its inner end with locking notches, and a spring-,actuated locking-dog to enter the said4 notches, set into a transverse socket formedv ceive the end of the said neck, a spindle constructed with a series of transverse holes, and rose, so as to conceal the pin, substantially as ro adapted to be entered into'the sad'knob,'a; described.

spring-pin adapted to be passed through the In testimony whereof I have signed this hole in the neck, Iinto one of the holes in the specification in the presence of two subscribspindle, and havingel head which engages ing witnesses.

with the said shoulder, which prevents it HENRY J. P. WHIPPLE. from turning, and which lets it down below Witnesses:

the surface of the neck, and means for draw- GEO. D. SEYMOUR, ing the end of the neck of the knob into the FRED C. EARLE. 

